Find value of x in the figure 2x + 15° р x + 15° 9 a
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Answers
Answered by
1
Answer:
x
=
10
Explanation:
f
(
x
)
=
2
x
−
5
and
f
(
x
)
=
15
therefore...
2
x
−
5
=
f
(
x
)
=
15
⇒
2
x
−
5
=
15
so you now have an equation to solve:
2
x
−
5
=
15
add 5 to both sides...
2
x
−
5
+
5
=
15
+
5
simplify
2
x
=
20
divide both sides by 20...
2
x
2
=
20
2
simplify
x
=
20
2
=
10
Answered by
3
Answer:
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